openwrtv4/target/linux/brcm47xx/patches-3.10/206-b44-activate-PHY-when-MAC-is-off.patch
Hauke Mehrtens 2c5e4aa6ad brcm47xx: b44: fix some problems with the phy
* do not try initialize a unused phy
* some improvements to the phylib patch
* do not turn the phy off when mac is off

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 38306
2013-10-06 18:31:32 +00:00

28 lines
1 KiB
Diff

From 444044a410d4cf3b6dd462f2c9352d56039d9e07 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 6 Oct 2013 17:58:24 +0200
Subject: [PATCH 6/6] b44: activate PHY when MAC is off
Without this patch we can not access the PHY when the MAC is switched
off. This PHY access is needed to configure the switch, which is done
through PHY registers.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/net/ethernet/broadcom/b44.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -1358,7 +1358,10 @@ static void b44_halt(struct b44 *bp)
bw32(bp, B44_MAC_CTRL, MAC_CTRL_PHY_PDOWN);
/* now reset the chip, but without enabling the MAC&PHY
* part of it. This has to be done _after_ we shut down the PHY */
- b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL);
+ if (bp->has_phy)
+ b44_chip_reset(bp, B44_CHIP_RESET_FULL);
+ else
+ b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL);
}
/* bp->lock is held. */